19129905

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 36426240

約数和(自身を除く): 17296335

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 61, 69, 101, 115, 135, 183, 207, 303, 305, 345, 505, 549, 621, 909, 915, 1035, 1403, 1515, 1647, 2323, 2727, 2745, 3105, 4209, 4545, 6161, 6969, 7015, 8235, 11615, 12627, 13635, 18483, 20907, 21045, 30805, 34845, 37881, 55449, 62721, 63135, 92415, 104535, 141703, 166347, 189405, 277245, 313605, 425109, 708515, 831735, 1275327, 2125545, 3825981, 6376635, 19129905]

約数ペア:

[(1, 19129905), (3, 6376635), (5, 3825981), (9, 2125545), (15, 1275327), (23, 831735), (27, 708515), (45, 425109), (61, 313605), (69, 277245), (101, 189405), (115, 166347), (135, 141703), (183, 104535), (207, 92415), (303, 63135), (305, 62721), (345, 55449), (505, 37881), (549, 34845), (621, 30805), (909, 21045), (915, 20907), (1035, 18483), (1403, 13635), (1515, 12627), (1647, 11615), (2323, 8235), (2727, 7015), (2745, 6969), (3105, 6161), (4209, 4545)]